BS IS0/IEC 14443-2:2020+A1:2021 Incorporating corrigenda July 2021 and September 2023 BSl Standards Publication Cards and security devices for personal identification Contactless proximity objects Part 2: Radio frequency power and signal interface bsi. BRITISH STANDARD BSIS0/IEC 14443-2:2020+A1:2021 National foreword This British Standard is the UK implementation of IS0/IEC 14443-2:2020+A1:2021, incorporating corrigenda July 2021 and September 2023. It supersedes BS IS0/IEC 14443-2:2020, which is withdrawn. The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to ISO/IEC text carry the number of the ISO/IEC amendment. For example, text altered by ISO/IEC amendment 1 is indicated by A A]. The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by ISO/IEC corrigendum July 2021 is indicated in the text by [Ac (Ac]. The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by ISO/IEC corrigendum September 2023 is indicated in the text by [Ac2 (Ac2]. The UK participation in its preparation was entrusted to Technical Committee IST/17, Cards and security devices for personal identification. A list of organizations represented on this committee can be obtained on request to its committee manager. Contractual and legal considerations This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will be made, and no responsibility or liability is or will be accepted by BsI in relation to the adequacy, accuracy, completeness or reasonableness of this publication. All and any such responsibility and liability is expressly disclaimed to the full extent permitted by the law. This publication is provided as is, and is to be used at the recipient's own risk. The recipient is advised to consider seeking professional guidance with respect to its use of this publication. This publication is not intended to constitute a contract. Users are responsible for its correct application. @ The British Standards Institution 2023 Published by BSI Standards Limited 2023 ISBN9780539275025 ICS 35.240.15 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2020. Amendments/corrigenda issued since publication Date Text affected 31 May 2021 Implementation of IS0/IEC amendment 1:2021 BRITISH STANDARD BSIS0/IEC14443-2:2020+A1:2021 Date Text affected 31 May 2022 Implementation of ISO/IEC corrigendum July 2021 30 September 2023 Implementation of ISO/IEC corrigendum Septem- ber 2023